AR reliability ????

[ar15barrels]

The AR platform has seen and been through a lot of different climates for like 2 decades, and they survive pretty well. Not the greatest, but for a poorly executed gas system (direct impingement) its doing pretty good in its own right.

First, it's been serving sucessfully for 4 decades.
Second, what makes you think the direct impingement gas system is poorly executed?
Don't believe all the piston marketing hype you read.
The hype is designed to make you purchase a solution for a problem that does not exist in your rifle.

[1lostinspace]

First, it's been serving sucessfully for 4 decades.
Second, what makes you think the direct impingement gas system is poorly executed?
Don't believe all the piston marketing hype you read.
The hype is designed to make you purchase a solution for a problem that does not exist in your rifle.

your right I fell into the whole 9mm vs 45ACP debate

and bought a G21 after owning a G17

Using winchester +P+ ammo the energy is almost the same and as any experienced shooter knows shot placement is key

[1lostinspace]

Only if the rifle has other issues making it slightly short stroke.
If a gun is setup properly, you can remove two of the 3 gas rings and it will function fine.
Remember that the gaps in the gas rings close up when you shove the bolt into the carrier.
Don't believe me? Take a ring off the bolt and slide it down into the carrier about 1" with the tail of the bolt.
When you remove the bolt, you will see how small the gap in the rin becomes.

never thought of that! you would think your a professional

AR barrels I will call you when I have some money put together for a 24-26" Bull barrel.

[UncleJohnny]

First, it's been serving sucessfully for 4 decades.
Second, what makes you think the direct impingement gas system is poorly executed?
Don't believe all the piston marketing hype you read.
The hype is designed to make you purchase a solution for a problem that does not exist in your rifle.

Oh forgot to put OVER 2 decades, sorry...Naw, not talking about the piston system design, not into those....Talking about the gas impingement design. Stoners design is much like the older 1900/40's gas systems like the AG-42, Mle 40/49/56 style rifles(Mas mle 49 is what im thinking), but instead the gas is directed into the bolt carrier group, venting gas in the rifle making it a "self fouling" weapon. The MAS-1949 is gas impingement, but more reliable because the excess gases escape at the top of weapon, and not "trapped" in.(the design permits this however) It uses a direct gas impingement system with no gas piston. The gases are fed from the barrel through the gas tube directly to the front face of the bolt carrier. The bolt carrier operates the tilting bolt, which is cammed down to lock into the slot in the receiver floor. Just saying stoner could of done it differently, but then again it wouldnt be the rifle it is today. I love the stoner design, I trust my life with my stoner designed rifle thats seen more combat than most military rifles in the world. Just saying, it could of been done better if the time permitted him to. But then again all this thinking of the stoner design, it is one of the simplest, lightest and easiest way to make a rifle semi-auto... Sorry for the long love letter.....

[ar15barrels]

Stoners design is much like the older 1900/40's gas systems like the AG-42, Mle 40/49/56 style rifles(Mas mle 49 is what im thinking), but instead the gas is directed into the bolt carrier group, venting gas in the rifle making it a "self fouling" weapon. The MAS-1949 is gas impingement, but more reliable because the excess gases escape at the top of weapon, and not "trapped" in.(the design permits this however)

Look closely at the timing relationship of Stoner's iteration and you will note that the exhaust ports open on the carrier with only about 1/8" of travel.
As soon as they open, all the gas pressure vents out the side of the receiver through the ejection port.
People think that gas is still flowing through the gas tube after the gas key slides off it, but this is usually not the case unless the gun is woefully over-gassed.
As soon as the bullet leaves the muzzle, the path of least resistance is out the front of the barrel.
Significant gas is not going to keep coming down the gas tube.

Timing is the key to proper function.
If you have a properly timed gun, it will tend to run cleaner and will not beat up the brass.

This is probably a good place to add a link to my write-up on AR-15 gas system operation.

https://www.ar15barrels.com/prod/operation.shtml

[UncleJohnny]

Yeah youre right, I didnt fully think it all out. Good read BTW...my original post, I didnt mean the stoner design was the worst thing ever, I should of re-worded my post. I just meant that he could of started where he left it. Make revisions on the system and others, if he had more time on his hands. Dont get me wrong, the stoner design is the only of its kind today and is reliable. And with its simplicity in parts, modularity, accuracy, etc. It still makes it one of the most desirable semi-auto rifle still today.(despite the under-rated cartridge)

[HotRails]

If you want something reliable in combat, get the AK.

I know H&K developed the 416 to try to address the jamming problems, but Im not sure its widely available to civilians yet.

[J_Rock]

If you want something reliable in combat, get the AK.

I know H&K developed the 416 to try to address the jamming problems, but Im not sure its widely available to civilians yet.

If you want something reliable in combat, get a bolt action single shot.

[bwiese]

If you want something reliable in combat, get the AK.

Reports from Iraq indicate tons of Iraqi AKs have lower performance than M16/M4s.

Many AK47s are not the original Russian mfg/design AKM (which is what most AK47s really are).

I know H&K developed the 416 to try to address the jamming problems, but Im not sure its widely available to civilians yet.

HK developed the 416 to have something 'different' to sell.

[tazmanian devil dog]

When the SHTF I am grabbing my M1A Socom 16 with 20rd mags (yes, bought before the stupid ban). That said, If you lube the hell out of your AR and take care of it, it should run with minimal jams.